On Thu, 19 Apr 2007 20:58:01 -0500
w6ids [EMAIL PROTECTED] wrote:
Well, Bill, I'll thank you for that. It answers a nagging question.
I've seen instances where I've seen myself being called by a
number of stations over time periodically.and I wasn't even
keying the rig. Can you
On Fri, 20 Apr 2007 01:25:12 -
Bill McLaughlin [EMAIL PROTECTED] wrote:
Hi John,
Sure you already know this but the key was the 0 3
082600 1 -14 5.2 584 3 * GM4SLV SM2LKW KP15 ? 0 3
Hi Bill,
I only started with JT65 yesterday but it didn't take me long to dig
through the docs to
Tony
1) what frequency are you using ?
2) I have on order a SOUNDLINK card will it run that
mode?
--- Tony [EMAIL PROTECTED] wrote:
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well of the bat seems ok, but once the conversation starts
the whole thing goes out the window.
maybe better if the jt65 code would have a special symbol
that would indicate a cq call.
that would be up to Joe i think.
david/wd4kpd
addendum...
as to the special symbol in the cq message, this would
allow you to tell if a station is calling cq, without having
to click and decode...
sort of like how distinctive a cq message is in cw, or ryry
sounds like in rtty.
david/wd4kpd
Not from here, Leigh, other than to add that it seems to make sense to
create a version that is more applicable to HF requirements. Nothing
wrong with that at all. Thanks for the effort; should be interesting.
Howard W6IDS
Richmond, IN
- Original Message -
From: Leigh L Klotz, Jr.
Andy, I dunno about that. It all depends on whether or not your flattened
spectra lasted for more than four hours!
Howard W6IDS
Richmond, IN
- Original Message -
From: Andrew O'Brien
To: digitalradio@yahoogroups.com
Sent: Thursday, April 19, 2007 9:36 PM
Subject: Re: [digitalradio]
I think this is a great idea for all digital modes.
I did a prototype in gmfsk of Vaisual CQ and I think it is more useful
than the visual mode ID that many digimode programs now sport. I don't
know how well it would work for JT65a if the goal is readability into
the noise, but with PSK, it
Howdy:
Well, the time has come to ready ourselves for the next running of the TARA
Skirmish Contest on 21 April 2007 from 00:00 UTC to 24:00 UTC 21 April 2007.
Yes, this is a FULL 24 hour contest that I'm sure all of you will enjoy. I
know some out there still think this is just a 12 hour
Joint TAPR/AMSAT Banquet at Dayton 2007
For many years, AMSAT and TAPR have held competing Hamvention dinner on
Friday evening. Given the tremendous overlap in membership and interest
between the two groups, this has always required tough choices.
We're pleased to announce that this year,
Hi Andy,
Hope all is well. Just a few random comments:
Using deep search - some in the EME community (mostly CW purists for
lack of a better term think the use of shorthand messages and deep search
decoding are not for making valis contacts...can seend you more of this if
interested but
Some of the supposed benefits of JT65a are real, but some are illusory.
I noticed that I could plainly heard tones and quite easily see them on
the waterfall at about the same level of visibility as a nearby Olivia
QSO, yet WSJT was reporting -20dB or son S/N.
Reading the paper [1], I found
--- In digitalradio@yahoogroups.com, Leigh L Klotz, Jr. [EMAIL PROTECTED]
wrote:
My conclusion is that this mode is about 10-15 dB worse than
it appears to be, and we should start doing more careful
tests alongside Olivia and plain old MFSK as controls in
side-by-side propagation
Good work Leigh, I was wondering about some of those -31 readings that I
could hear with my ears. I think Olivia testing is a good thing for this
weekend.
Bonnie, the fad is an interesting issue. Certainly weak signal
performance is a popular goal, but I wonder if it JT65A is popular in part
As of 0130Z beaconing OLIVIA 250/8 tones 14073.5 +1000hz every minute running
75 watts. Here 20M is still open with very few CW sigs mostly
from W6
John
VE5MU
I think that fad might be a tad strong. Personally I am amazed at J65 and
it's ability to work under very low signal conditions.
The other night I worked JA on 20M without ANY indication of a signal, just one
tiny spike, and nothing by ear.
I would however happily switch to another mode
All,
Actually an old controversy re JT65* modes in the EME community, dead
horse oft beaten but still think it is the mode suite of choice for
MS and EME; also think more to the point is what other weak signal
modes work as well or better with bandwidth taken into balance on HF?
If for a 60
me too, same freq, same settings , 75 watts. Beacons starts around 25
seconds past the minute for 30 seconds
Andy K3UK
On 4/20/07, John Bradley [EMAIL PROTECTED] wrote:
As of 0130Z beaconing OLIVIA 250/8 tones 14073.5 +1000hz every minute
running 75 watts. Here 20M is still open with very
On Sat, 21 Apr 2007 01:00:52 -
expeditionradio [EMAIL PROTECTED] wrote:
--- In digitalradio@yahoogroups.com, Leigh L Klotz, Jr. [EMAIL PROTECTED]
wrote:
My conclusion is that this mode is about 10-15 dB worse than
it appears to be..
After a week or so of monitoring JT65A on 14MHz
I think W1JT has done an excellent job not only with the DSP and mode
design but also with the software, making it open souirce, documenting
it well both technically and for users, and seeding further development
with a group of others. I don't mean to detract from this work at all.
I think
At 0245Z moved to 7078.5 1000hz Olivia 250/8 Beaconing every minute.
John
VE5MU
- Original Message -
From: Andrew O'Brien
To: digitalradio@yahoogroups.com
Sent: Friday, April 20, 2007 9:14 PM
Subject: Re: [digitalradio] Weak signals Olivia vs JT65
me too, same freq,
No argument from me. Alot to be garnered from this...both technically
and socially. The discussion alone is of value. The mode suite is
pretty much what it is in context of its intent. That it provokes
interest on HF might be an arrow pointing towards abit different
goal. Might even mean that
I like Shetland John's idea about deep search work on 12 or 10 M. I think I
will give it a try tomorrow on 12 and see what I come up with. Will check
prop charts for best time to north of John O' Groats...
Andy K3UK
On 4/20/07, Bill McLaughlin [EMAIL PROTECTED] wrote:
No argument from
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